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Mainali, Brijesh, DrORCID iD iconorcid.org/0000-0003-0189-474x
Publications (10 of 25) Show all publications
Schneider, J. V., Mainali, B., Herrero, J. M., Malmquist, A., Martin, A. & Alejo, L. (2020). Biogas based polygeneration plant options utilizing dairy farms waste: A Bolivian case. Sustainable Energy Technologies and Assessments, 37
Open this publication in new window or tab >>Biogas based polygeneration plant options utilizing dairy farms waste: A Bolivian case
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2020 (English)In: Sustainable Energy Technologies and Assessments, ISSN 2213-1388, E-ISSN 2213-1396, Vol. 37Article in journal (Refereed) Published
Abstract [en]

This study presents a comparative techno-economic feasibility analysis for two polygeneration plant solutions, applied to low-income dairy farms in Bolivia. The first option considers an internally fired microturbine (IFMT) and, the second, an internal combustion engine (ICE). They are integrated with an absorption refrigeration system and a fertilizer dryer. Biogas, produced with farms waste, fuels these power generators. The levelized costs of biogas for cooking, electricity, cooling and fertilizers were determined. The cost of biogas, for both options, was found to be 0.020 USD/kWh, which is lower than the subsidized price of LPG. The most competitive cost of electricity was determined for the ICE plant option; it was found to be 0.082 USD/kWh and is lower than the subsidized cost of fossil fuel-based electricity. The cost of cooling was found to be around 0.082 USD/kWh, which is slightly higher than the cost of cooling supplied by using grid electricity. In a realistic scenario, the shorter payback period was found to be 4.4 years for the ICE plant option. From this, the ICE-based plant was found as the most feasible option. Additionally, if no subsidies are applied to the fossil fuel-based services, the proposed polygeneration systems are a highly competitive alternative.

Keywords
Polygeneration plantTechno-economic study, Biogas Dairy farm, Energy services, Electricity Cooling, Fertilizer
National Category
Energy Systems
Identifiers
urn:nbn:se:lnu:diva-90447 (URN)10.1016/j.seta.2019.100571 (DOI)
Available from: 2019-12-09 Created: 2019-12-09 Last updated: 2019-12-09
Schneider, J. V., Mainali, B., Herrero, J. M., Malmquist, A., Martin, A. & Alejo, L. (2020). Techno-Economic Study of a Biogas-Based Polygeneration Plant for Small Dairy Farms in Central Bolivia. In: Sayigh A (Ed.), Renewable Energy and Sustainable Buildings: . Springer
Open this publication in new window or tab >>Techno-Economic Study of a Biogas-Based Polygeneration Plant for Small Dairy Farms in Central Bolivia
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2020 (English)In: Renewable Energy and Sustainable Buildings / [ed] Sayigh A, Springer, 2020Chapter in book (Refereed)
Abstract [en]

This paper presents a techno-economic feasibility study of a polygeneration plant proposed for an association of dairy farmers in Bolivia. The systems have been designed in an integrated approach and are based on the resource recovery utilizing available cow dung. The production of biogas is proposed using “low cost” tubular digesters. The biogas is used for the production of electricity and heat in a 40 kWel internal combustion engine. Heat from the exhaust gas is recovered to drive an absorption cooling system for milk refrigeration and for a bio-slurry drying system. The final services are biogas, electricity, cooling and fertilizers. The techno-economic analysis focuses on determining the levelized cost of the services and compare them with the subsidized and non-subsidized prices of other competitive services in the market. Sensitivity analyses for the services prices are carried out to see the influence of the feedstock handling cost and the subsidies on investment capital. Once the selling prices of the services are defined, the payback period of investment capital is determined. The results show that the biogas and electricity costs were found lower than the subsidized prices of similar services in the market while the cost of cooling was found slightly higher. From the sensitivity analysis we have that the feedstock handling cost can be increased from 10 to 18 USD/ton while maintaining the biogas price below the subsidized LPG price, and applying subsidies to the investment capital allows reducing the rest of the services costs. The payback period is around 3.5 years when a subsidy of 15% is applied in the investment capital and the services are sold at the subsidized prices of the conventional services. Our study has shown that under the conditions of the Bolivian market it is feasible the installation of a polygeneration plant. On the other hand, a market without or with reduced subsidies for the conventional services makes the proposed system more feasible and competitive.

Place, publisher, year, edition, pages
Springer, 2020
National Category
Energy Systems
Research subject
Humanities, English Education
Identifiers
urn:nbn:se:lnu:diva-90448 (URN)10.1007/978-3-030-18488-9_54 (DOI)978-3-030-18487-2 (ISBN)978-3-030-18488-9 (ISBN)
Available from: 2019-12-09 Created: 2019-12-09 Last updated: 2019-12-09
Mainali, B., Pardalis, G. & Mahapatra, K. (2019). Criteria based approach for assessment of policy instruments for deep renovation of residential building in the Netherlands. In: ECEEE Summer Study proceedings: eceee 2019 Summer Study on energy efficiency: Is efficient sufficient?. Paper presented at ECEEE 2019 Summer Study,3-8 June, Belambra Presqu'île de Giens, France (pp. 599-606). European Council for an Energy Efficient Economy (ECEEE), Article ID 3-352-19.
Open this publication in new window or tab >>Criteria based approach for assessment of policy instruments for deep renovation of residential building in the Netherlands
2019 (English)In: ECEEE Summer Study proceedings: eceee 2019 Summer Study on energy efficiency: Is efficient sufficient?, European Council for an Energy Efficient Economy (ECEEE), 2019, p. 599-606, article id 3-352-19Conference paper, Published paper (Refereed)
Abstract [en]

The building sector is responsible for more than 40 % of the energy use and 32 % of carbon dioxide emissions in the European Union (EU). Previous research has shown that the present rate of energy retrofit and refurbishment in Europe is far below (<50 %) than that is required to meet the EU's building related energy efficiency goals for 2020. Appropriate policy interventions for deep renovation is perceived as a catalytic agent in promoting energy efficiency and leveraging more investments in the building sector. EU directives regarding Energy Efficiency reflects in various member states' national targets and policy measures to improve the energy performance of the existing building stocks. Economic policy instruments seem to be influential in steering the deep renovation market, but this alone may not be sufficient for the sustainable growth of the market. There is a need for market-based approach to enhance the private sector involvement, both in terms of technical and financial capabilities. This paper evaluates the policy instrument used for promoting deep renovation of residential buildings in the Netherlands. A "Theory-based evaluation" technique has been used in analyzing the content of the policy instrument, and the underlying theories and policies, at output and impact level. A set of the evaluation criteria have been applied for assessing such policy instruments in leveraging energy efficiency investments and their effectiveness in terms of energy savings. The assessments are done based on the meta-analysis of relevant literature and data sources, and finalized in consultation with the Dutch partners from INNOVATE (Integrated solutions for ambitious energy refurbishment of private housing) project under Horizon 2020. Further, the challenges for scaling up such existing effort for the sustainable growth of the deep renovation market has been explored.

Place, publisher, year, edition, pages
European Council for an Energy Efficient Economy (ECEEE), 2019
Keywords
policy instruments, deep renovations, residential buildings, assessments, impact, output
National Category
Other Environmental Engineering Other Civil Engineering Building Technologies
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-85248 (URN)978-91-983878-4-1 (ISBN)
Conference
ECEEE 2019 Summer Study,3-8 June, Belambra Presqu'île de Giens, France
Projects
Integrated solutions for ambitious energy refurbishment of private housing (INNOVATE)
Available from: 2019-06-13 Created: 2019-06-13 Last updated: 2019-09-03Bibliographically approved
Dhakal, S., Srivastava, L., Sharma, B., Palit, D., Mainali, B., Nepal, R., . . . Wakhley, K. B. (2019). Meeting Future Energy Needs in the Hindu Kush Himalaya. In: Philippus Wester, Arabinda Mishra, Aditi Mukherji, Arun Bhakta Shrestha (Ed.), The Hindu Kush Himalaya Assessment: Mountains, Climate Change, Sustainability and People (pp. 167-207). Springer
Open this publication in new window or tab >>Meeting Future Energy Needs in the Hindu Kush Himalaya
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2019 (English)In: The Hindu Kush Himalaya Assessment: Mountains, Climate Change, Sustainability and People / [ed] Philippus Wester, Arabinda Mishra, Aditi Mukherji, Arun Bhakta Shrestha, Springer, 2019, p. 167-207Chapter in book (Refereed)
Abstract [en]

As mentioned in earlier chapters, the HKH regions form the entirety of some countries, a major part of other countries, and a small percentage of yet others. Because of this, when we speak about meeting the energy needs of the HKH region we need to be clear that we are not necessarily talking about the countries that host the HKH, but the clearly delineated mountainous regions that form the HKH within these countries. It then immediately becomes clear that energy provisioning has to be done in a mountain context characterized by low densities of population, low incomes, dispersed populations, grossly underdeveloped markets, low capabilities, and poor economies of scale. In other words, the energy policies and strategies for the HKH region have to be specific to these mountain contexts.

Place, publisher, year, edition, pages
Springer, 2019
National Category
Energy Systems
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
urn:nbn:se:lnu:diva-79426 (URN)10.1007/978-3-319-92288-1_6 (DOI)978-3-319-92288-1 (ISBN)978-3-319-92287-4 (ISBN)
Available from: 2019-01-10 Created: 2019-01-10 Last updated: 2019-01-17Bibliographically approved
Pardalis, G., Mainali, B. & Mahapatra, K. (2019). One-stop-shop as an innovation, and construction SMEs: a Swedish perspective. In: Prof. J.Yanab, Prof. H.Yangc, Dr. H.Lid, Dr. X.Chene (Ed.), Innovative Solutions for Energy Transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018). Paper presented at 10th International Conference on Applied Energy (ICAE2018), Hong Kong, China, August 22-25, 2018 (pp. 2737-2743). Elsevier, 158
Open this publication in new window or tab >>One-stop-shop as an innovation, and construction SMEs: a Swedish perspective
2019 (English)In: Innovative Solutions for Energy Transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018) / [ed] Prof. J.Yanab, Prof. H.Yangc, Dr. H.Lid, Dr. X.Chene, Elsevier, 2019, Vol. 158, p. 2737-2743Conference paper, Published paper (Refereed)
Abstract [en]

This paper examines the views of construction SMEs in Sweden regarding innovations, in particular the one-stop-shop business concept,and its adoption for renovation of detached house. The investigation is based on interviews with 10 construction SMEs and by applying aconceptual framework for organizational innovation adoption. The results suggest that, even though the one-stop-shop businessconcept is perceived as a means for growth, at present, construction SMEs in Sweden are unlikely to adopt it at present. This lackof interest is mostly related to the perceived complexity of this model and the underlying risks and uncertainties. That complexity isseen as a preventing factor as it puts at stake their current business. The interviewees proposed that there should be an entrepreneur to coordinate the actors involved in the renovation process, whose role can be further studied.

Place, publisher, year, edition, pages
Elsevier, 2019
Series
Energy Procedia, E-ISSN 1876-6102
Keywords
innovation adoption, one-stop-shop, construction SMEs, adopter characteristics, perceptions
National Category
Construction Management
Research subject
Environmental Science, Environmental technology
Identifiers
urn:nbn:se:lnu:diva-78474 (URN)10.1016/j.egypro.2019.02.031 (DOI)000471031703016 ()2-s2.0-85063905020 (Scopus ID)
Conference
10th International Conference on Applied Energy (ICAE2018), Hong Kong, China, August 22-25, 2018
Funder
The Kamprad Family Foundation, 6810EU, Horizon 2020, 6811
Available from: 2018-10-25 Created: 2018-10-25 Last updated: 2019-08-29Bibliographically approved
Bravo, G., Pardalis, G., Mahapatra, K. & Mainali, B. (2019). Physical vs. Aesthetic Renovations: Learning from Swedish House Owners. Buildings, 9(1), Article ID 12.
Open this publication in new window or tab >>Physical vs. Aesthetic Renovations: Learning from Swedish House Owners
2019 (English)In: Buildings, ISSN 2075-5309, E-ISSN 2075-5309, Vol. 9, no 1, article id 12Article in journal (Refereed) Published
Abstract [en]

In this paper, we identify the socio-economic attributes and attitudes that have influencedhouse owners in renovating their homes in the past. Our study is based on responses to an onlinequestionnaire survey of 971 house owners living in Kronoberg County in Sweden. Results showedthat the interest and willingness of the house owners to perform a renovation varied dependingon their demographic background and the age of the house. The latter positively affected pastrenovations, only when combined with the residence time. Furthermore, the age of house ownersstrongly and positively affected the probability of performing aesthetic type of renovations, becauseof a long time of residence in the house. Younger, town living, and highly educated house ownersseem to be more concerned regarding saving energy, which motivated them to perform physicalrenovations on their house. Our results also suggest that income, level of education, and place ofresidence have an effect on renovation decisions only through their effect on the energy concern ofhouse owners, and a varied effect on renovation decisions, when combined with the time of residencein the house.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
house owners, renovations, physical renovations, aesthetic renovations, decision-making
National Category
Energy Systems Environmental Management
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-79411 (URN)10.3390/buildings9010012 (DOI)000457159600017 ()2-s2.0-85059532629 (Scopus ID)
Funder
The Kamprad Family Foundation
Available from: 2019-01-09 Created: 2019-01-09 Last updated: 2019-08-29Bibliographically approved
Pardalis, G., Mahapatra, K., Mainali, B. & Jalilzadehazhari, E. (2019). Renovation of detached houses in Sweden: Can one-stop-shop provide a solution?. In: Presented at: International Conference on Sustainability in Energy and Buildings SEB-19: . Paper presented at International Conference on Sustainability in Energy and Buildings SEB-19, Budapest, Hungary, 4-5 July 2019. , Article ID seb19s-006.
Open this publication in new window or tab >>Renovation of detached houses in Sweden: Can one-stop-shop provide a solution?
2019 (English)In: Presented at: International Conference on Sustainability in Energy and Buildings SEB-19, 2019, article id seb19s-006Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Based on an online survey, this paper analyzes the attitude of house owners in Sweden towards future renovations and one-stop-shop (OSS) services for deep renovation of detached houses. With the aid of a house owners’ decision-making journey for renovation, personal and contextual variables have been analyzed to identify those house owners having renovation plans in the near future, what they are going to renovate, and which needs led them to that decision. Furthermore, we examine if there is an interest in OSS concept. Results suggest that deep renovation is not yet prioritized. The priority for house owners is to change specific components of their dwelling and follow a step-wise approach. Aesthetic renovations are high on the agenda, with some structural and energy-related renovations following them. House owners between 29- 49 years of age could be the customer segment to target for deep renovations. The OSS concept seems interesting to a number of house owners, who can form an early adopters segment that could develop the market. There is a need for a cost-efficient OSS concept for deep renovations, ensuring the quality of work, and the optimization of financial products and tax incentives to accelerate the deep renovation market.

Keywords
future renovations, energy renovations, one-stop-shop, attitudes
National Category
Other Environmental Engineering Other Engineering and Technologies not elsewhere specified
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment; Technology (byts ev till Engineering); Natural Science, Environmental Science
Identifiers
urn:nbn:se:lnu:diva-86288 (URN)
Conference
International Conference on Sustainability in Energy and Buildings SEB-19, Budapest, Hungary, 4-5 July 2019
Funder
The Kamprad Family Foundation, 68110021
Note

Ej belagd 190902

Available from: 2019-07-10 Created: 2019-07-10 Last updated: 2019-09-03Bibliographically approved
Pardalis, G., Mahapatra, K. & Mainali, B. (2019). Swedish construction MSEs: simply renovators or renovation service innovators?. Building Research & Information, 48(1), 67-83
Open this publication in new window or tab >>Swedish construction MSEs: simply renovators or renovation service innovators?
2019 (English)In: Building Research & Information, ISSN 0961-3218, E-ISSN 1466-4321, Vol. 48, no 1, p. 67-83Article in journal (Refereed) Published
Abstract [en]

To address the renovation needs of detached house stock in Sweden, micro and small-sized enterprises (MSEs), a subgroup of small and medium-sized enterprises, are expected to introduce more comprehensive house renovation solutions. One-stop-shop (OSS) is an innovative Product-Service System model that can enable MSEs to offer comprehensive renovation packages instead of existing fragmented solutions. We have applied a conceptual framework for innovation adoption in organizations and conducted an interview of 21 construction MSEs in three different geographical areas in Sweden to examine their perceptions and preparedness to adopt the OSS business concept. Findings showed that the examined MSEs are positive towards OSS as it could address the needs for the comprehensive renovation of detached houses. However, presently, are not prepared to take the coordinator’s role in such a concept mainly due to the perceived business risks, the lack of flexibility to organizational restructuring, and lack of resources and management competency to coordinate multiple tasks and actors. Those organizations lacked awareness of existing policy support and access to funding mechanisms to try new business models. As a solution, they proposed an external coordinator to be the provider of OSS, on the trial phase, whose role and characteristics need to be further examined.

Place, publisher, year, edition, pages
Taylor & Francis, 2019
Keywords
Innovation adoption, Construction MSEs, One-stop-shop, Organizational innovation, Business model
National Category
Construction Management Other Environmental Engineering Business Administration
Research subject
Economy, Ledarskap, entreprenörskap och organisation; Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-89083 (URN)10.1080/09613218.2019.1662713 (DOI)000485554000001 ()
Projects
One-Stop-Shop model for Energy Renovation of single family houses in SwedenINNOVATE-Integrated solutions for energy refurbishment of housing- EU Horizon 2020 Project
Funder
The Kamprad Family Foundation, 68110021
Available from: 2019-09-12 Created: 2019-09-12 Last updated: 2019-10-07Bibliographically approved
Pardalis, G., Mahapatra, K., Bravo, G. & Mainali, B. (2019). Swedish House Owners’ Intentions Towards Renovations: Is there a Market for One-Stop-Shop?. Buildings, 9(7), 1-16, Article ID 164.
Open this publication in new window or tab >>Swedish House Owners’ Intentions Towards Renovations: Is there a Market for One-Stop-Shop?
2019 (English)In: Buildings, ISSN 2075-5309, E-ISSN 2075-5309, Vol. 9, no 7, p. 1-16, article id 164Article in journal (Refereed) Published
Abstract [en]

In this paper, we examine factors aecting owners’ intention for renovation of their detached houses. Furthermore, we analyze their interest in choosing a one-stop-shop (OSS) service for the renovation, even though such a concept is not yet established in Sweden, but emerging in other parts of Europe. Our study is based on responses to an online questionnaire survey of 971 house owners residing in Kronoberg Region in Sweden. About 76% of the respondents intend to renovate in the near future, with approximately 71% of them preferring to renovate individual components of their dwelling and 5% to renovate their whole house in steps. House owners of younger age, higher income, higher education, and those with an interest for environmental issues, were the ones most interested in physical renovations, which improves energy efficiency of the building. For those house owners, one-stop-shop can facilitate the decision-making process, and help them to choose those measures that will improve their quality of life. Approximately 20% of the respondents had a positive view towards an one-stop-shop, which is an indicator that market for such a service exists. Parameters such as quality of work, cost and energy savings and specification of measures to be adopted are the key for the promotion of one-stop-shop. Additionally, house owners want to have a certain level of involvement in the selection of actors performing the renovation. Moreover, financial incentives, e.g., loans, do not play a significant role for the selection of one-stop-shop, but act as complementary motive for house owners.

Place, publisher, year, edition, pages
Basel: MDPI, 2019
Keywords
house owners, detached house, renovation, retrofit, energy efficiency, one-stop-shop
National Category
Other Civil Engineering Other Environmental Engineering Other Engineering and Technologies not elsewhere specified Other Social Sciences not elsewhere specified
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment; Technology (byts ev till Engineering)
Identifiers
urn:nbn:se:lnu:diva-86255 (URN)10.3390/buildings9070164 (DOI)000478645000009 ()2-s2.0-85070101538 (Scopus ID)
Projects
Smarthousing Småland
Funder
The Kamprad Family Foundation, 68110021
Available from: 2019-07-09 Created: 2019-07-09 Last updated: 2019-08-29Bibliographically approved
Mainali, B., Mahapatra, K. & Pardalis, G. (2018). Evaluating market models for deep-energy renovation using SWOT and PEST Analysis. In: 14th Conference on Advanced Building Skins, 28-29 October, 2018, Bern, Switzerland: . Paper presented at 14th Conference on Advanced Building Skins, 28-29 October, 2018, Bern, Switzerland.
Open this publication in new window or tab >>Evaluating market models for deep-energy renovation using SWOT and PEST Analysis
2018 (English)In: 14th Conference on Advanced Building Skins, 28-29 October, 2018, Bern, Switzerland, 2018Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Buildings are responsible for 40% of energy consumption and 36% of CO2 emissions in the EU. Sweden and Denmark are cold climatic countries with strong demand for space heating and hot water in the residential sector. Large section of the detached houses in these countries are built more than 30 years ago and need refurbishment. Despite of huge energy saving potentials with deep renovation of these houses, there exists several challenges in realizing those saving potential. This paper evaluates the market for deep renovation of single-family houses in these two Nordic countries using PEST and SWOT analysis. Comparative analysis between two countries will help to understand the common and country specific drivers and barriers and to develop strategic recommendation in accordance.

National Category
Energy Systems
Research subject
Technology (byts ev till Engineering), Sustainable Built Environment
Identifiers
urn:nbn:se:lnu:diva-78473 (URN)
Conference
14th Conference on Advanced Building Skins, 28-29 October, 2018, Bern, Switzerland
Funder
EU, Horizon 2020, 6811The Kamprad Family Foundation, 6810
Note

Ej belagd 190416

Available from: 2018-10-25 Created: 2018-10-25 Last updated: 2019-05-22Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-0189-474x

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