An experimental study of hybrid photovoltaic thermal (PV/T)‐active solar still

Kumar, Sunil; Tiwari, Arvind

doi:10.1002/er.1388

Cited by 118 publications

(31 citation statements)

References 12 publications

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“…The PV system is used to generate electricity to run a pump as well as thermal energy to heat the water in the collector. The hybrid-active solar system gave more than 3.5 times yield than the passive solar still [4]. Other recent work has shown that a thermal-driven refrigeration system using a new sorbent-sorptive as the working pair has achieved lower generator, lower evaporator temperatures, and higher coefficient of performance [5].…”

Section: Introductionmentioning

confidence: 92%

Low-grade heat-driven Rankine cycle, a feasibility study

Husband

Beyene

2008

Int. J. Energy Res.

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SUMMARYConversion of low-grade heat to high-quality energy such as electricity using the Rankine cycle poses serious challenges. When such conversion is possible, it is invariably expensive or unacceptable due to environmental concerns associated with the working medium. The low-grade heat can either be from exhaust systems or from solar radiation. Thus, the topic addresses a very useful subject, combining energy efficiency and renewable energy. Although high-grade heat recovery and energy conversion is a mature technology widely covered by the literature, low-grade energy conversion, especially using thermodynamic cycles, has not been sufficiently addressed to date. This paper addresses the feasibility of a low-grade heat-driven Rankine cycle to produce power using a scroll expander, a low toxicity, low flammability, and ozone-neutral working fluid. A cost benefit analysis of the recommended system shows that it is a viable option for solar power generation, at about one-third the cost of a comparable photovoltaic system.

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Section: Introductionmentioning

confidence: 92%

Low-grade heat-driven Rankine cycle, a feasibility study

Husband

Beyene

2008

Int. J. Energy Res.

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“…Therefore, space and cost of installation of PV module separately from the system has been avoided. In this case, solar radiation is transmitted through non-packing area of PV module and finally absorbed by the blackened absorber [5].…”

Section: A Single Slope Passive Solar Stillmentioning

confidence: 99%

A Review Paper on Performance Analysis of Various HPVT / PVT Modules under Different Indian Climatic Conditions

Kumar¹,

Doda²,

Chauhan³

2017

IJARCSSE

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Since 1970's a lot of research and development has been done on various modules of PVT. Many innovative models of PVT has been developed and put forward and validity has been evaluated by experimental data.This paper presents the various performance parameters of different types of modules which include both Air and Water as collector. Effects of various parameters, namely interest rate, life of the system and the maintenance cost have been taken into account. A comparison is made keeping in view the energy matrices. The study has been based on electrical, thermal and energy output of the HPVT air collector. An analysis of an actively cooled combined of photovoltaic thermal system consisting if a linear solar concentrator and tubular absorber has been presented here. An attempt has also been made to evaluate the thermal performance of two types of hybrid photovoltaic thermal (PV/T) air collector system for composite climate of New Delhi. This paper also presents the performance evaluation of a hybrid photovoltaic thermal (Semi transparent PVT) double pass facade for space heating. This paper presents theoretical and experimental analysis of double pass solar air collector with and without porous material. A novel solar air collector of pin-fin integrated absorber designed to increase the thermal efficiency is also discussed here. Keywords: Hybrid photovoltaic thermal (HPVT) air collector, solar air collector, passive and hybrid (PV/T) active solar still, thermal performance, energy and exergy efficiencies. I. INTRODUCTIONIncreasing cost of fossil fuels has compelled scientists to look for different options to meet energy requirements keeping in view that such options are economical, abundant in nature and have low maintenance cost. Over the years, scientists have studied various options available such as nuclear energy, wind energy, bio mass, fuel cell, solar energy, etc. Studies have shown that amongst available sources of energy, solar energy appears to be freely available, more economical and truly environment friendly than other sources of energy available [1]. Solar energy can be utilized as electrical energy, thermal energy or a combination of both. Hybrid photovoltaic thermal (HPVT) air collector system can collectively generate electrical and thermal energy. The HPVT system can be used as air collector/water collector. A HPVT air collector consists of a PV module with an air duct mounted below the PV module. The air is passed through the duct by using a fan. The air gets heated by using the thermal energy available at the bottom of the PV module. In case of HPVT water collector, water is used in place of air [2]. Thus, an HPVT system can be used as (1) Air collector (2) Water collector

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“…Shiv carried out an experimental study on an active solar still with integrated photovoltaics and reported an output 3.5 times higher than for a passive solar still [147]. Rahul et al (2010) did an experiment combining the flat plate collector and PV with an active still and also presented a mathematical model for the system [148].…”

Section: Photovoltaic-thermal Stillsmentioning

confidence: 99%