Energy, exergy, and cost analysis of solar powered desiccant air conditioning system

Kumar, Amit; Mehla, Neeraj

doi:10.1002/ep.13861

Cited by 9 publications

(4 citation statements)

References 30 publications

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“…Let C be the preliminary cost of SCS, on the closure of r year with every year interest rate of i % and s is the salvage price then, the expenditure recovery factor can be defined by Kumar and Mehla. 25…”

Section: Cost Estimation Of the Scsmentioning

confidence: 99%

Expenditure recovery factor = \frac{i {((), 1 goodbreak+ i)}^{r}}{{((), 1 goodbreak+ i)}^{r} - 1} .

The following equations are used to calculate the cumulative annual price of the SHCP, sinking fund factor and annual salvage value:

Cummulative annual price = Expenditure recovery factor \times E_{u} .

where,

E_{u} =

Underlying expense

Sinking fundfactor = \frac{i}{(1 + i) - 1},

Salvage value for a year = Sinking fund factor \times C_{s} .

The Total cost incurred in a year is given by Equation () as:

italicTotal cost incurred in a italicyear goodbreak= italicCummulative Annual Pric normale goodbreak+ C_{m} goodbreak- italicSalvage value for a italicyear,

where, C m is annual cost of maintenance.…”

Section: Cost Estimation Of the Scsmentioning

confidence: 99%

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Energy, exergy and exergoeconomic (3E's) analysis of simmering type cooking using evacuated tube collector

Chaudhary¹,

Mehla

Kumar

et al. 2023

Env Prog and Sustain Energy

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A solar cooking system is investigated for the simmering type of cooking using slow heating cooking pot (SHCP) and evacuated tube collector (EVTC). The thermic oil used as heat transfer fluid (HTF) is utilized to convey heat from the solar collector to SHCP. Indian cuisine items like Khoa and Kheer are cooked by using simmering method of cooking. The cooking load is varied from 1 to 2.5 L for khoa preparation and 2 to 2.8 L load is varied for kheer preparation. The cooking is done by utilizing the thermal energy of thermic oil flowing inside the SHCP and its average energy and exergy efficiency is evaluated which varies from $0.20 to around 0.30 and 0.15 to 0.20, respectively. The payback period of the presented solar cooking system is 3.45 years.

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Section: Cost Estimation Of the Scsmentioning

confidence: 99%

Expenditure recovery factor = \frac{i {((), 1 goodbreak+ i)}^{r}}{{((), 1 goodbreak+ i)}^{r} - 1} .

The following equations are used to calculate the cumulative annual price of the SHCP, sinking fund factor and annual salvage value:

Cummulative annual price = Expenditure recovery factor \times E_{u} .

where,

E_{u} =

Underlying expense

Sinking fundfactor = \frac{i}{(1 + i) - 1},

Salvage value for a year = Sinking fund factor \times C_{s} .

The Total cost incurred in a year is given by Equation () as:

italicTotal cost incurred in a italicyear goodbreak= italicCummulative Annual Pric normale goodbreak+ C_{m} goodbreak- italicSalvage value for a italicyear,

where, C m is annual cost of maintenance.…”

Section: Cost Estimation Of the Scsmentioning

confidence: 99%

Energy, exergy and exergoeconomic (3E's) analysis of simmering type cooking using evacuated tube collector

Chaudhary¹,

Mehla

Kumar

et al. 2023

Env Prog and Sustain Energy

View full text Add to dashboard Cite

show abstract

“…The cost of hot air generation from ETSAH in case III (with the best results) is evaluated by performing the economic analysis as under 30 :…”

Section: Economic Analysismentioning

confidence: 99%

Experimental analysis of evacuated tube solar air heater (ETSAH) with inbuilt sensible thermal energy storage

2022

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In the present work, an evacuated tube solar air heater (ETSAH) with inbuilt sensible heat storage material (SHSM) is experimentally evaluated. The system comprises two sets each having 50 evacuated tubes with an H‐type arrangement and a total collector area of 16.92 m2. For the purpose of hot air generation, ETSAH is simultaneously connected in series and in parallel with and without the use of reflectors. Three different mass flow rates of 122.90, 164.87, and 212.83 kg/h were fixed to get 12 diverse cases of ETSAH operation. The highest hot air temperature reported by the system is 121.7°C when it was connected in series with conventional reflectors at 212.83 kg/h of flow rate and 469 W/m2 average solar intensity. The system reported an overall average energy efficiency of 49.76% and an exergy efficiency of 17.97% with the highest average hot air temperature difference of 56.12°C from 09:00 to 20:00 h. Without the incorporation of any additional SHSM, the average hot air temperature delivered by ETSAH (when under the neighbor building shadow) is 49.73°C logged from 17:00 to 20:00 h. The economic analysis is also carried out to ensure its practical application and feasibility. For the best system performance, the annual cost of hot air generation is 0.0194 Rs./kg (0.0002433 $/kg).

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“…The technologies like drying, 1 desalination, 2 cooling, 3 air conditioning, 4 and atmospheric water harvesting 5 requires hot air. The hot air can be produced by using conventional energy sources (like fossil fuels) and renewable energy sources (like solar energy, wind energy).…”

Section: Introductionmentioning

confidence: 99%

Experimental comparison of solar air heater based on single and double‐ends open evacuated tube collector

Tiwari,

Kumar

2023

Env Prog and Sustain Energy

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The hot air has a lot of applications like drying, space heating, desiccant air conditioning and desalination, which attracts the attention of researchers towards the system used for producing the hot air. In the present work, two different solar air heaters that is, double‐ends open evacuated tube based solar air heater (system 1) and single‐end open evacuated tube based solar air heater (system 2) are proposed and compared experimentally. The aperture area of each system is 4.687 m2 and operated under same weather conditions. The experiments are performed at three different mass flow rates of the process air that is, 153.21, 207.94, and 246.24 kg/h. The highest mean air temperature difference is 62.91 and 48.8°C for system 1 and system 2 respectively at mass flow rate of 153.21 kg/h. The highest mean energy and exergy efficiency obtained by the system 1 and system 2 are 81.55%, 6.80%, and 65.45% and 4.25% respectively. The present work is also compared with the work presented in literature and it is observed that double‐end open evacuated tube collector has significantly high energy and exergy efficiency with higher hot air temperature.

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Energy, exergy, and cost analysis of solar powered desiccant air conditioning system

Cited by 9 publications

References 30 publications

Energy, exergy and exergoeconomic (3E's) analysis of simmering type cooking using evacuated tube collector

Energy, exergy and exergoeconomic (3E's) analysis of simmering type cooking using evacuated tube collector

Experimental analysis of evacuated tube solar air heater (ETSAH) with inbuilt sensible thermal energy storage

Experimental comparison of solar air heater based on single and double‐ends open evacuated tube collector

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