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Thermal Performance Assessment of Greenhouse Solar Dryer Operated Under Active Mode

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Recent Trends in Thermal Engineering

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

In the present paper, an even span roof-shaped greenhouse dryer’s thermal performance has been experimentally evaluated under no-load condition. The objective of the work is to evaluate the various heat transfer parameters inside greenhouse dryer so that proper crops would be selected for drying purposes. The average set value of air mass rate used for evaluation is 0.14, 0.21 and 0.28 kg/s for each consecutive days of operations. The results showed that the optimum value of the mass flow rate of air at which heat loss is less and heat gain is more.

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Abbreviations

A fl :

Floor area (m2)

B dr :

Breadth of the dryer (m)

C p :

Specific heat at constant pressure (J/kgK)

h ca :

Convective-heat-transfer coefficient of the canopy-ambient (W/m2K)

h ra :

Radiative-convective-heat-transfer coefficient (W/m2K)

I :

Sun intensity falling on greenhouse (W/m2)

K :

Thermal conductivity (W/mK)

P T :

Partial vapor pressure at temperature T (N/m2)

T :

Time in seconds

X :

Characteristic length (m)

T grd :

Temperature of ground (°C)

T r :

Temperature of room (°C)

T o :

Ambient temperature (°C)

U :

Overall heat transfer coefficient (W/m2K)

V a :

Velocity of air inside the dryer (m/s)

V f :

Velocity of fan (rpm)

Φ:

Relative humidity of air (%)

σ :

Stefan-Boltzmann constant (W/m2k4)

ϵ :

Emissivity

c :

Cover

References

  1. Chauhan PS, Kumar A (2017) Heat transfer analysis of north wall insulated greenhouse dryer under natural convection mode. Energy 118:1264–1274

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Author information

Authors and Affiliations

  1. Lakshmi Narain College of Technology, Bhopal, 462022, India

    Vipin Shrivastava & Anil Singh Yadav

  2. University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal, 462033, India

    Nitin Shrivastava

Authors
  1. Vipin Shrivastava
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  2. Anil Singh Yadav
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  3. Nitin Shrivastava
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Editor information

Editors and Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Technology Indore, Indore, Madhya Pradesh, India

    Ritunesh Kumar

  2. Research Centre for Nano-Materials and Energy Technology, Sunway University, Subang Jaya, Selangor, Malaysia

    Adarsh Kumar Pandey

  3. Department of Mechanical Engineering, Manipal University, Jaipur, Rajasthan, India

    Ravi Kumar Sharma

  4. School of Mechanical Engineering, Lovely Professional University, Phagwara, Punjab, India

    Gavendra Norkey

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Shrivastava, V., Yadav, A.S., Shrivastava, N. (2022). Thermal Performance Assessment of Greenhouse Solar Dryer Operated Under Active Mode. In: Kumar, R., Pandey, A.K., Sharma, R.K., Norkey, G. (eds) Recent Trends in Thermal Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-3132-0_8

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  • DOI: https://doi.org/10.1007/978-981-16-3132-0_8

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-16-3131-3

  • Online ISBN: 978-981-16-3132-0

  • eBook Packages: EngineeringEngineering (R0)

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