Heat Recovery Ventilation

Introduction


Heat recovery ventilation, also known as HRV, mechanical ventilation heat recovery, or MVHR, is an energy recovery ventilation system using equipment known as a heat recovery ventilator, heat exchanger, air exchanger, or air-to-air heat exchanger which employs a counter-flow heat exchanger (countercurrent heat exchange) between the inbound and outbound air flow.
HRV provides fresh air and improved climate control, while also saving e ....etc

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This article is presented by:Dr. P. S. Paul
Dept. of Mining Engineering
Indian School of Mines University, Dhanbad

INTRODUCTION

Tunnels or drifts are essentially blind headings till they are connected to shafts or adits thus posing a real challenge to ventilation engineers.

The work place environment in tunnels is greatly influenced by the ventilation method, selection of proper fan and ....etc

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Prepared by:
Christopher P. Diehl, Benjamin E. Henty, Nikhil Kanodia, and Daniel D. Stancil


Abstract
An alternative method of distributing RF in buildings is proposed in which the heating and ventilation ducts are used as waveguides. Because of the relatively low waveguide loss, this method may lead to more efficient RF distribution than possible with radiation through walls or the use of leaky coax. Further, the use of existing infrastructure could lead to a lower-cost system. Initial experimental results are p ....etc

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PRESENTED BY:
LALIT SHARMA


VENTILATION IN BUILDINGS
What is Ventilation ?
The process of removing used air by fresh air from buildings and spaces is called ventilation. This is done by Natural or Artificial methods
Effects of Ventilation :- 
1. To remove the used air from spaces/buildings.
To supply oxygen for humans.
Remove excessive moisture.
Remove excessive heat.
Cool the surroundings and freshen up the atmosphere in the building.
Composition of Air
Nitrogen 78%
Oxygen ....etc

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BRTHR ! i wnt to giv seminar on Heat Ventilation and Air Conditioning(HVAC),So plz post its ppt and abstract.............plz. ....etc

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Automatic Ventilation Control

Introduction
This article describes the design of a portable automatic ventilation control system that also processes arterial oxygen saturation (SpO2) data from a pulse oximeter. The system, built around Freescale’s 8-bit MC9S08QG4 microcontroller (MCU), is designed to be a portable, automatic replacement for manual pulse oxygen and ventilation monitoring and control, requiring less human interaction during surgery. It can be particularly useful during surgery on infants. Overview All tissue ....etc

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High Conductance Heat Transfer Using Solar Heat Pipe Collector

presented by :-
MR. SHIVAJI D. YADAO1, MR. PRMENDRA J BANSOD2
Dr. D.Y.Patil Institute of Engg. & Tech.,Pune University, Pune,
Dr. D.Y.Patil Institute of Engg. & Tech.,Pune University, Pune,

abstract
In recent years it has become increasingly important to develop methods for efficient transport of thermal energy from one location to another. Moreover the advent of the space age has stimulated research for heat transfer devices which are ....etc

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