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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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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Lalu's school gains more fans
Union Railway Minister Lalu Prasad
narrates the successful turnaround of the
loss-making Indian Railways.
G. Krishnakumar
KOCHI: The 'Lalu Rath' rolled into
the hearts of hundreds of
management students of the
Cochin University of Science and
Technology (Cusat) and
mesmerised them by narrating
how he scripted the successful
turnaround of the loss-making
Indian Railways.
Before starting his interaction
with the students here on Friday,
Railway Minister Lalu Prasad
reminded them that
representatives ....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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I want full presentation on the project topic 'automatic speed control for fans and coolers.

Thank you. ....etc

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AUTOMATIC SPEED CONTROLLER FOR FANS WITH ON/OFF CONTROL BY LIGHT

ABSTRACT
The circuit designed here lets us turn ON/OFF a fan or any device by just directing a torch light or any other light towards its light-dependent resistor. In short we are tiying to develop a remote control for turning ON/OFF an electronic device.
During summer nights, the temperature is initially quite high. As time passes, the temperature starts dropping. Also, after a person falls asleep, the metabolic rate of one's body decreases. Thus, init ....etc

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please upload full report regarding this topic. ....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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