### Abstract

In order to estimate the airflow rate and temperature in the channel of building an integrated photovoltaic (BIPV) system, a simplified mathematical method has been derived in which the buoyancy force balances the friction along the channel. The channel is represented as a closed duct and the pressure losses are calculated in a similar fashion to those in a pipe circuit. Pressure losses at ventilation inlets and outlets are calculated using pressure loss factors, K_{f}. The effect of wind pressure on mass flow rate and temperature in the channel can be estimated with the inclusion of the wind speed pressure into the formulation. The benefit of wind pressure applied normal to the inlet and tangential to the outlet of the channel can be seen. The procedure yields the mass flow rate and temperature directly by solution of a simple cubic equation. This method allows the engineers and scientist to predict optimum configuration of their PV cladding design.

Original language | English |
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Title of host publication | AIP Conference Proceedings |

Pages | 390-394 |

Number of pages | 5 |

Volume | 1528 |

DOIs | |

Publication status | Published - 2013 |

Event | 2012 National Physics Conference, PERFIK 2012 - Bukit Tinggi, Pahang Duration: 19 Nov 2012 → 21 Nov 2012 |

### Other

Other | 2012 National Physics Conference, PERFIK 2012 |
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City | Bukit Tinggi, Pahang |

Period | 19/11/12 → 21/11/12 |

### Fingerprint

### Keywords

- buoyancy force
- cubic equation
- pressure loss
- PV cladding
- ventilation

### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*AIP Conference Proceedings*(Vol. 1528, pp. 390-394) https://doi.org/10.1063/1.4803632

**Mathematical analysis method for predicting temperature rise in BIPV.** / Ibarahim, Zahari; Ruslan, Mohd Hafidz; Ibrahim, Zamry.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*AIP Conference Proceedings.*vol. 1528, pp. 390-394, 2012 National Physics Conference, PERFIK 2012, Bukit Tinggi, Pahang, 19/11/12. https://doi.org/10.1063/1.4803632

}

TY - GEN

T1 - Mathematical analysis method for predicting temperature rise in BIPV

AU - Ibarahim, Zahari

AU - Ruslan, Mohd Hafidz

AU - Ibrahim, Zamry

PY - 2013

Y1 - 2013

N2 - In order to estimate the airflow rate and temperature in the channel of building an integrated photovoltaic (BIPV) system, a simplified mathematical method has been derived in which the buoyancy force balances the friction along the channel. The channel is represented as a closed duct and the pressure losses are calculated in a similar fashion to those in a pipe circuit. Pressure losses at ventilation inlets and outlets are calculated using pressure loss factors, Kf. The effect of wind pressure on mass flow rate and temperature in the channel can be estimated with the inclusion of the wind speed pressure into the formulation. The benefit of wind pressure applied normal to the inlet and tangential to the outlet of the channel can be seen. The procedure yields the mass flow rate and temperature directly by solution of a simple cubic equation. This method allows the engineers and scientist to predict optimum configuration of their PV cladding design.

AB - In order to estimate the airflow rate and temperature in the channel of building an integrated photovoltaic (BIPV) system, a simplified mathematical method has been derived in which the buoyancy force balances the friction along the channel. The channel is represented as a closed duct and the pressure losses are calculated in a similar fashion to those in a pipe circuit. Pressure losses at ventilation inlets and outlets are calculated using pressure loss factors, Kf. The effect of wind pressure on mass flow rate and temperature in the channel can be estimated with the inclusion of the wind speed pressure into the formulation. The benefit of wind pressure applied normal to the inlet and tangential to the outlet of the channel can be seen. The procedure yields the mass flow rate and temperature directly by solution of a simple cubic equation. This method allows the engineers and scientist to predict optimum configuration of their PV cladding design.

KW - buoyancy force

KW - cubic equation

KW - pressure loss

KW - PV cladding

KW - ventilation

UR - http://www.scopus.com/inward/record.url?scp=84877845573&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877845573&partnerID=8YFLogxK

U2 - 10.1063/1.4803632

DO - 10.1063/1.4803632

M3 - Conference contribution

SN - 9780735411531

VL - 1528

SP - 390

EP - 394

BT - AIP Conference Proceedings

ER -