A procedure for analysing energy savings in multiple small solar water heaters installed in low-income housing in Brazil

Giglio, Thalita Gorban Ferreira; Lamberts, Roberto; Barbosa, M.L.V; Urbano, Mariana Ragassi

doi:10.1016/j.enpol.2014.04.036

Cited by 35 publications

(16 citation statements)

References 14 publications

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“…PBP has been shown only on net savings of all the utilities and has been estimated by using (2). All the savings have been estimated in terms of consumption (annually) [19,21]. It is notable that SWH was purchased for IR 20,000/-and the SDC was purchased IR 6,100/-, from NEDA, Moradabad, at a subsidy of 25%.…”

Section: Economic Analysismentioning

confidence: 99%

A High Rated Solar Water Distillation Unit for Solar Homes

Saxena¹,

Deval²

2016

Journal of Engineering

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India is presently focusing on complete utilization of solar energy and saving fossil fuels, which are limited. Various solar energy systems like solar cookers, solar water heaters, solar lanterns, solar PV lights, and solar lamps are continuously availing by the people of India at a low cost and on good subsidies. Apart from this, India is a solar energy promising country with a good number of solar homes (carrying solar energy systems) in its various locations. The present paper focuses on a unique combination of solar dish cooker (SDC) and solar water heater (SWH) to produce distilled water with a high distillate and a high daily productivity. The procedure has been discussed on the basis of experimental testing to produce distilled water by combining an evacuated type SWH and a SDC. Experimentation has been carried out in MIT, Moradabad (longitude, 28.83°N, and latitude, 78.78°E) by developing the same experimental setup on behalf of solar homes. The daily productivity of distilled water was found around 3.66 litres per day in full sunshine hours for an approximated pH value of 7.7 and a ppm value of 21. The payback period (PBP) has been estimated around 1.16 years of the present system.

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Section: Economic Analysismentioning

confidence: 99%

A High Rated Solar Water Distillation Unit for Solar Homes

Saxena¹,

Deval²

2016

Journal of Engineering

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“…Naspolini et al (2010) studied the energy saved in showering through a change in hot water system to solar electric boosted systems, in low-income communities in Brazil. Giglio et al (2014) also analysed the link between showers and hot water systems, studying the benefits of low-cost solar hot water systems for different socio-economic groups. Beal et al (2012) investigated the impact of efficient technologies on water and energy end use in households.…”

Section: Introductionmentioning

confidence: 99%

The effect of water demand management in showers on household energy use

Binks

Kenway

Lant

2017

Journal of Cleaner Production

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“…Practically, there are projects with large quantities of EE devices spread over large geographical areas, such as large scale lighting retrofit [47], solar water heater mass roll out [17], and residential rebate programs [24]. Due to budgetary constraints not all devices can be metered, and so sampling is used, which introduces the sampling uncertainties into the reported energy savings [22].…”

Section: Introductionmentioning

confidence: 99%

A cost-effective approach to handle measurement and verification uncertainties of energy savings

Olinga

Xia

2017

Energy

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Measurement and verification (M&V) function has been adopted in many energy efficiency (EE) programmes to quantify energy savings, identify new energy efficiency opportunities, improve EE programme design, and reduce EE programme performance risks. Budgetary constraints in EE programmes necessitate careful planning to minimise M&V cost whilst maintaining M&V accuracy. For this purpose, this study presents an M&V cost minimisation model to handle M&V sampling and modelling uncertainties costeffectively. In the proposed model, the objective function is the total M&V project cost, which consists of M&V sampling cost, modelling cost, and overhead cost. The required M&V accuracy in terms of the 90/10 criterion is formulated as the constraints of this optimisation problem. Optimal solutions to the proposed model specify the required baseline model accuracy and sample sizes to achieve the desired M&V accuracy. The proposed model is applied to design an optimal M&V sampling and modelling plan for a traffic light retrofit project. Results show that the optimal M&V plan reduces the sampling cost by 42% and the total M&V cost by 11% against the solutions obtained by partial optimisation.

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A procedure for analysing energy savings in multiple small solar water heaters installed in low-income housing in Brazil

Cited by 35 publications

References 14 publications

A High Rated Solar Water Distillation Unit for Solar Homes

A High Rated Solar Water Distillation Unit for Solar Homes

The effect of water demand management in showers on household energy use

A cost-effective approach to handle measurement and verification uncertainties of energy savings

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