pendulum hand water pump design calculation

Hand water pump with a pendulum is a very simple solution for pumping water. It provides alleviation of work, because it is enough to move the pendulum occasionally with a little finger to pump the water, instead of large swings. Work is alleviated because easier, long-lasting and effortless use of the hand water pump has been enabled.

Input energy for starting the process of pumping, in form of occasional pushing of the pendulum, is much less than with typical hand pumps. Whereas typical hand pumps ....etc

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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 energy by reducing heatin ....etc

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design calculation of hydraulic lift pdf

Abstract

The following paper describes the design as well as analysis of a hydraulic scissor lift. Conventionally a scissor lift or jack is used for lifting a vehicle to change a tire, to gain access to go to the underside of the vehicle, to lift the body to appreciable height, and many other applications Also such lifts can be used for various purposes like maintenance and many material handling operations. It can be of mechanical, pneumatic or hydraulic type. The design described in the paper is dev ....etc

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Introduction

HVAC (Heating, Ventilating, and Air Conditioning) refers to technology of indoor or automotive environmental comfort. HVAC system design is a major subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers).
HVAC is particularly important in the design of medium to large industrial and office build ....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 tissues ....etc

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Presented By:
Reena Kumari
M.Tech (ETC)
Roll No: 851015
3rd semester,2009

Introduction
Goal:
To design a efficient MAC protocol for underwater acoustic sensor network suitable for multi-hop network

Different emphasis from mid-semester surveys:
Challenges and opportunities of Physical channel of underwater communication(already discussed)
Studied different MAC protocol as introduced by different authors (already discussed)
Comparison between MAC s and their challenges (already discussed) ....etc

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OPTIMUM DESIGN OF AN ACOUSTIC ENCLOSURE FOR DIESEL GENERATOR
Project presentation on OPTIMUM DESIGN OF AN ACOUSTIC ENCLOSURE FOR DIESEL GENERATOR


What is an acoustic enclosure
An acoustic enclosure is a containerized vessel used for housing generators to :
Reduce noise levels.
Improve reliability and durability of generator sets (gensets).
Easy serviceability.
High uptime of genset.
Improved aesthetic of genset.
Better working conditions.


Acoustic enclosures
Problem statement
Opt ....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 pr ....etc

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The goal of this project is to create a model of bench vice which is pneumatically operated. Using air pressure to create mechanical motion in the spindle of the vice provides a safe & efficient way to reduce human effort.
The mechanical motion in the spindle is created with the help of a double actuating cylinder which is operated by a 5/2 pilot valve & two 3/2 push buttons with the help of the air hoses. ....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 duct apart from cost ....etc

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