Technical Physics

Gennaro CUCCURULLO Technical Physics

0612100019
DEPARTMENT OF CIVIL ENGINEERING
EQF6
BSC DEGREE IN CIVIL ENGINEERING
2019/2020

YEAR OF COURSE 2
YEAR OF DIDACTIC SYSTEM 2018
PRIMO SEMESTRE
CFUHOURSACTIVITY
660LESSONS
Objectives
THIS COURSE INTRODUCES THE FUNDAMENTAL PRINCIPLES OF THERMODYNAMICS HAVING IN MIND TO APPLY THEM TO FEATURE REFRIGERATION AND HEATING SYSTEMS. MOREOVER, THE OPTIMISATION OF THESE SYSTEMS FOR THE PURPOSE OF ENERGY EFFICIENCY IS INTRODUCED. THUS, THE COURSE OBJECTIVE IS TO PROVIDE THE KNOWLEDGE OF THE BASIC YET CRITICAL CONCEPTS CONCERNING THERMODYNAMICS AND ENVIRONMENTAL CONVERSION SYSTEMS. HEATING PLANTS ARE EXPLORED IN THE FRAMEWORK OF THE ACTUAL LAWS PANORAMA AND LIGHT IS GIVEN TO ECONOMIC, ARCHITECTURAL, "COMFORT" AND "ENERGY SAVING" ASPECTS.FURTHER AND UPDATED INFORMATION CAN BE FOUND BY LINKING TO THE URL:HTTPS://WWW.RINOCUCCURULLO.COM
Prerequisites
FOR THE SUCCESSFUL ACHIEVEMENT OF THE OBJECTIVES, THE KNOWLEDGE OF THE BASIC NOTIONS AS GIVEN IN THE FIRST YEAR COURSES OF MATHEMATICS AND PHYSICS, IS REQUIRED.
Contents
THERMODYNAMICS
BASIC CONCEPTS (3 H) - SYSTEM AND ENVIRONMENT. THERMODYNAMIC PROPERTIES. THERMODYNAMIC STATE. SIMPLE AND COMPRESSIBLEE SYSTEM. THERMODYNAMIC EQUILIBRIUM. ALMOST STATIC AND CYCLE TRANSFORMATIONS. ENERGY, WORK AND HEAT.
FIRST LAW OF THERMODYNAMICS FOR CLOSED SYSTEMS (5 H) - ENERGY POSTULATE. FIRST LAW OF THERMODYNAMICS FOR ISOLATED SYSTEMS. MEASURABILITY AND CONTROLLABILITY OF ENERGY. OTHER FORMULATIONS OF THE FIRST LAW OF THERMODYNAMICS FOR A CLOSED SYSTEM. LIMITS OF THE FIRST LAW OF THERMODYNAMICS.
SECOND LAW OF THERMODYNAMICS FOR CLOSED SYSTEMS (15 H) - ENTROPY POSTULATE. ENTROPY PROPERTIES. REVERSIBLE AND IRREVERSIBLE PROCESSES. SECOND LAW OF THERMODYNAMICS FOR ISOLATED SYSTEMS. MEASURABILITY OF ENTROPY. GIBBS EQUATIONS. SECOND LAW OF THERMODYNAMICS FOR CLOSED SYSTEMS. INEQUALITY OF CLAUSIUS. VOLUME CHANGE WORK. SPECIFIC HEAT. ENERGY CONVERSION SYSTEMS. DIRECT AND REVERSE CARNOT CYCLES.
GENERAL LAWS OF OPEN SYSTEMS (7 H) - CONTINUITY EQUATION OF THE MASS. I AND II LAW OF THERMODYNAMICS. MECHANICAL ENERGY EQUATION.
STATES THERMODYNAMICS (10 H) - PHASE IDENTIFICATION. THERMODYNAMIC PLANS. LIQUIDS, SOLIDS, STEAM AND GAS: MODELS, CALCULATION OF THE PROPERTIES AND TRANSFORMATIONS.
MOTOR AND OPERATOR PLANTS (20 H) - COMPONENTS OF PLANTS. HEATING PLANTS. STEAM OPERATOR PLANTS: REFRIGERATOR AND HEAT PUMP.

HEAT TRANSFER
INTRODUCTION (2H)
BASIC MODES OF HEAT TRANSFER
THE RELATION OF HEAT TRANSFER TO THERMODYNAMICS
THE OBJECTIVES OF THE COURSE. CONSTITUTIVE AND BALANCE EQUATIONS FOR HEAT TRANSFER.
STEADY 1D CONDUCTION (10 H) - THE CONDUCTION EQUATION. BOUNDARY CONDITIONS. STEADY ONE-DIMENSIONAL HEAT CONDUCTION IN SIMPLE GEOMETRIES FOR HOMOGENEOUS AND INHOMOGENEOUS PROBLEMS. EXTENDED SURFACES
UNSTEADY HEAT CONDUCTION (10 H) LUMPED AND SEMI-INFINITE BODY. OSCILLATING BOUNDARY CONDITIONS. ANALYTICAL SOLUTIONS FOR THE SLAB, HEISLER CHARTS.
CONVECTION (20 H) - ANALYSIS OF CONVECTION HEAT TRANSFER. DIMENSIONLESS BOUNDARY LAYER EQUATIONS AND SIMILARITY PARAMETERS. PROCEDURES FOR EVALUATING THE CONVECTION HEAT TRANSFER COEFFICIENT. FORCED CONVECTION INSIDE TUBES. BULK TEMPERATURE AND HEAT TRANSFER COEFFICIENT FON INTERNAL CONVECTION. THE SIMPLIFICATIONS OF THE FULLY DEVELOPED REGIONS.
RADIATIVE HEAT TRANSFER (18) - THERMAL RADIATION: SPECTRAL AND DIRECTIONAL FEATURES. INTENSITY OF THE RADIATION FOR CALCULATING THE RADIATIVE HEAT FLUXES. BLACKBODY RADIATION. RADIATIVE CHARACTERISTICS OF OPAQUE SURFACES: EMISSION - ABSORPTION - REFLECTION, DEFINITIONS AND MODELS. RELATIONSHIP BETWEEN THE EMISSION, ABSORPTION AND REFLECTION. SPECIAL SURFACES. HEAT TRANSFER BETWEEN DIFFUSE GRAY SURFACES.
Teaching Methods
DURING THE COURSE LESSONS AND EXERCISES ARE PROVIDED IN THE CLASSROOM. SELECTED EXERCISES ARE ASSIGNED TO THE STUDENTS IN ORDER TO IMPROVE THE KNOWLEDGE OF THERMODYNAMICS, ENERGY CONVERSION SYSTEMS AND HEAT TRANSFER
Verification of learning
THE ACHIEVEMENT OF THE PREFIXED OBJECTIVES WILL BE REALIZED BY WRITTEN TEST AND ORAL INTERVIEW. THE LATTER IS TO BE HELD NECESSARILY IN THE SAME SESSION IN WHICH THE WRITTEN TEST IS PASSED AND IS TYPICALLY SCHEDULED SEVEN DAYS AFTER THE WRITTEN TEST. IN PARTICULAR, IT IS AIMED TO EVALUATE THE CAPABILITY OF THE STUDENT IN APPROACHING, WITH CRITICAL SENSE AND MATURITY, PROBLEMS TYPICAL OF APPLIED THERMODYNAMICS. WRITTEN TESTS MAY INCLUDE QUESTIONS OPEN AND STRUCTURED SEMI-STRUCTURED TESTS IN ADDITION TO VARIOUS TYPES OF EXERCISES.
Texts
G. CUCCURULLO, ELEMENTI DI TERMODINAMÍCA E TRASMISSIONE DEL CALORE, MAGGIOLI, 2016

FOR FURTHER READING::
MORAN, SHAPIRO, MUNSON, DEWITT. ELEMENTI DI FISICA TECNICA PER L'INGEGNERIA, MCGRAW-HILL.
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