'Latent heat' diaporamas de présentation

The Stefan Problem and the Exact Solution for the Two Phase Stefan Problem

1.93k views • 119 slides

2 Combustion and Thermochemistry

2 Combustion and Thermochemistry. Review of Property Relations. Extensive Properties V (m 3 ), U (J), H (J)(= U+PV ) Intensive Properties v (m 3 /kg), u (J/kg), h =(J/kg)(= u+Pv ) P,T V=mv;U=mu;H=mh. Equation of State. For Ideal-gas Behavior: PV=NR u T PV=mRT Pv=RT

4.14k views • 108 slides

Chapter 2: Weather and Climate Holly Barcus Morehead State University And Joe Naumann UMSL

Introduction to Geography People, Places, and Environment, 3e Edward F. Bergman William H. Renwick. Chapter 2: Weather and Climate Holly Barcus Morehead State University And Joe Naumann UMSL. Weather & Climate affect us in many ways. Major Factor in Habitability of Areas.

1.27k views • 94 slides

STERILIZATION AND ASEPSIS

STERILIZATION AND ASEPSIS. INTRODUCTION: Sterilization : the process by which an article, surface or medium is freed of all living micro-organisms either in the vegetative or spore state.

3.64k views • 71 slides

Sindhunil Barman Roy Raja Ramanna Centre for Advanced Technology, Indore

Kinetically arrested first order magneto-structural phase transitions: glass-like phenomena. Sindhunil Barman Roy Raja Ramanna Centre for Advanced Technology, Indore. Plan of the talk:. Some technologically important materials of current interest

999 views • 71 slides

Reaction Energy

Reaction Energy. Specific Heat. The specific heat of any substance is the amount of heat required to raise the temperature of one gram of that substance by one degree Celsius. Because different substances have different compositions, each substance has its own specific heat.

1k views • 62 slides

Heat flow

Heat flow. Heat is energy: measured in Watts ( = J/s) Temperature is the amount of heat in a material. Measured in degrees Celsius (C o ) Measured in Kelvin (K) 0 K (-273 C o )= material with no heat. Vibration of molecules in a substance. Electromagnetic radiation. Heat flow.

1.53k views • 56 slides

HEATING AND AIR-CONDITIONING COMPONENTS AND OPERATION

62. HEATING AND AIR-CONDITIONING COMPONENTS AND OPERATION. Figure 62-1 Water is a substance that can be found naturally in solid, liquid, and vapor states.

853 views • 46 slides

Progress towards understanding and predicting turbulent heat fluxes in the Canadian Rockies

Progress towards understanding and predicting turbulent heat fluxes in the Canadian Rockies. Warren Helgason 1,2,3 and John Pomeroy 2,3 1 Biological Engineering 2 Centre for Hydrology 3 Global Institute for Water Security University of Saskatchewan.

1.02k views • 32 slides

493 views • 28 slides

SUNSCALD OF FRUIT

SUNSCALD OF FRUIT. Preston K. Andrews Department of Horticulture & Landscape Architecture Washington State University. HISTORY. First referred to as sunscald of beans by McMillan in 1918 Sunscald of apples described by Knight in 1922

394 views • 26 slides

Heat

Heat

184 views • 18 slides

Overall Energy Balance for the Corn Stover to Ethanol Process

442 views • 15 slides

Rain-on-Snow Snowmelt Modeling

Rain-on-Snow Snowmelt Modeling. Pete Fickenscher ----- Hydrologist California-Nevada River Forecast Center National Weather Service ----- San Joaquin River Flood Control Association Feb. 16, 2006. Snowmelt Due to Rain-on-Snow. Simple Energy Balance. Snowmelt Due to Rain-on-Snow. Lf.

324 views • 14 slides

Meteorology and Atmospheric Physics lecture 3

Meteorology and Atmospheric Physics lecture 3. Recap: Vapour pressure over a liquid drop is higher than over a plane surface. How can this be? Do curved surfaces attract more vapour molecules towards them?

598 views • 13 slides

Hydrologic Cycle

518 views • 12 slides

Temperature variations

Temperature variations. John Harris - Head of Geography - Radley College mjh@radley.org.uk http://atschool.eduweb.co.uk/radgeog. Why does temperature vary?. Season Latitude Altitude Aspect Continentality Cloud cover Winds and ocean currents Surface characteristics.

269 views • 11 slides

Natural Disasters

Natural Disasters. By: Patrick L. Abbott. Chapter 1. Energy Sources and Disasters. Overview. Energy Sources of Disasters Origin of the Sun and Planets Internal Sources of Energy External Sources of Energy Energy Circulation and Human risk. Energy Sources of Disasters . Energy Gravity

401 views • 10 slides

Heat gain in buildings: Other factors

Heat gain in buildings: Other factors. Solar radiation Classification of solar radiation Direct radiation: Radiation that reaches earth's surface direct from the sun. Diffuse radiation: Radiation that has been scattered or re-emitted.

553 views • 6 slides

Describe and explain the patterns on figure 9.49,any anomolies to the general pattern.

Describe and explain the patterns on figure 9.49,any anomolies to the general pattern. Objectives. Students should know how hurricanes form Students should recognise pressure gradients, lapse rates and Coriolis force and their role in hurricane formation

181 views • 6 slides